GitLab 18.4 < 18.4.3 / 18.5 < 18.5.1 (CVE-2025-6601)

low Nessus Plugin ID 271496

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Synopsis

The version of GitLab installed on the remote host is affected by a vulnerability.

Description

The version of GitLab installed on the remote host is affected by a vulnerability, as follows:

- Gitlab reports: Improper access control issue in runner API impacts GitLab EE Denial of service issue in event collection impacts GitLab CE/EE Denial of service issue in JSON validation impacts GitLab CE/EE Denial of service issue in upload impacts GitLab CE/EE Incorrect Authorization issue in pipeline builds impacts GitLab CE Business logic error issue in group memberships impacts GitLab EE Missing authorization issue in quick actions impacts GitLab EE (CVE-2025-6601)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to GitLab version 18.4.3, 18.5.1 or later.

Plugin Details

Severity: Low

ID: 271496

File Name: gitlab_cve-2025-6601.nasl

Version: 1.1

Type: combined

Agent: unix

Family: CGI abuses

Published: 10/26/2025

Updated: 10/26/2025

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:P/A:N

CVSS Score Source: CVE-2025-6601

CVSS v3

Risk Factor: Low

Base Score: 2.7

Temporal Score: 2.4

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:gitlab:gitlab

Required KB Items: installed_sw/GitLab

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2025

Vulnerability Publication Date: 10/22/2025

Reference Information

CVE: CVE-2025-6601

Detections

Analytics